The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 27, 2026

Filed:

Aug. 01, 2023
Applicants:

Leslie Bromberg, Sharon, MA (US);

Daniel R. Cohn, Bridgton, ME (US);

Inventors:

Leslie Bromberg, Sharon, MA (US);

Daniel R. Cohn, Bridgton, ME (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F01N 3/10 (2006.01); F01N 3/30 (2006.01); F02D 19/06 (2006.01);
U.S. Cl.
CPC ...
F01N 3/208 (2013.01); F01N 3/101 (2013.01); F01N 3/2073 (2013.01); F01N 3/306 (2013.01); F01N 2430/04 (2013.01); F01N 2610/02 (2013.01); F01N 2610/03 (2013.01); F01N 2900/0408 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1402 (2013.01); F02D 19/0644 (2013.01);
Abstract

A number of enhancements to the operation of ammonia and hydrogen engines are described. These include improvements to the exhaust treatment systems, where a three-way catalyst plus SCR is used to significantly reduce emissions. Additionally, new approaches for enhanced ammonia powered engine operation using alcohol-based fuels are described. Further, control systems that may be utilized with these engines are described. These control systems use endothermic exhaust heat reforming of a fuel to significantly increase overall engine efficiency. The exhaust heat is used in an endothermic reaction to convert the fuel into a hydrogen rich gas which has more chemical energy than the pre-reformed fuel. The hydrogen rich gas is then combusted in the engine. Also, additional enhancements to the exhaust treatment system when used with ammonia or hydrogen engines are disclosed.


Find Patent Forward Citations

Bromberg, Leslie. (2026). Enhanced operation of hydrogen and ammonia engines (U.S. Patent No. 12774670). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12774670

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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